Abstract
AbstractExtensive research has revealed the association of continued oxidative stress with chronic inflammation, which could subsequently affect many different chronic diseases. The mycotoxin deoxynivalenol (DON) frequently contaminates cereals crops worldwide, and are a public health concern since DON ingestion may result in persistent intestinal inflammation. There has also been considerable attention over the potential of DON to provoke oxidative stress. In this study, the cytoprotective effect of Schisandrin A (Sch A), one of the most abundant active dibenzocyclooctadiene lignans in the fruit ofSchisandra chinensis(Turcz.) Baill (also known as Chinese magnolia-vine), was investigated in HT-29 cells against DON-induced cytotoxicity, oxidative stress and inflammation. Sch A appeared to protect against DON-induced cytotoxicity in HT-29 cells, and significantly lessened the DON-stimulated intracellular reactive oxygen species and nitrogen oxidative species production. Furthermore, Sch A lowered DON-induced catalase, superoxide dismutase and glutathione peroxidase antioxidant enzyme activities but maintains glutathione S transferase activity and glutathione levels. Mechanistic studies suggest that Sch A reduced DON-induced oxidative stress by down-regulating heme oxygenase-1 expression via nuclear factor (erythroid-derived 2)-like 2 signalling pathway. In addition, Sch A decreased the DON-induced cyclooxygenase-2 expression and prostaglandin E2 production and pro-inflammatory cytokine interleukin 8 expression and secretion. This may be mediated by preventing DON-induced translocation of nuclear factor-κB, as well as activation of mitogen-activated protein kinases pathways. In the light of these findings, we concluded that Sch A exerted a cytoprotective role in DON-induced toxicityin vitro, and it would be valuable to examinein vivoeffects.
Publisher
Springer Science and Business Media LLC
Reference70 articles.
1. Sies, H. Oxidative stress: oxidants and antioxidants. Exp Physiol 82, 291–295 (1997).
2. SCOOP. Collection of occurrence data of Fusarium toxins in food and assessment of dietary intake by the population of EU member states. Directorate-General Health and Cosummer Protection (2003).
3. EFSA. Deoxynivalenol in food and feed: occurrence and exposure. EFSA J 11, 3379 (2013).
4. JECFA. Evaluation of certain food additives and contaminants. Seventy-second report of the Joint FAO/WHO Expert Committee on Food Additives; WHO Technical Report Series, No. 959; World Health Organization (WHO): Geneva, Switzerland. (2011).
5. Sobrova, P. et al. Deoxynivalenol and its toxicity. Interdiscip Toxicol 3, 94–99 (2010).
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